In 2017, Decatur County, IA had a population of 8.11k people with a median age of 36.5 and a median household income of $41,042. Between 2016 and 2017 the population of Decatur County, IA declined from 8,210 to 8,105, a -1.28% decrease and its median household income grew from $38,467 to $41,042, a 6.69% increase.
The 5 largest ethnic groups in Decatur County, IA are White (Non-Hispanic) (93.2%), White (Hispanic) (2.26%), Black or African American (Non-Hispanic) (1.67%), Two or More Races (Non-Hispanic) (1.42%), and Asian (Non-Hispanic) (0.617%). N/A% of the people in Decatur County, IA speak a non-English language, and 98.4% are U.S. citizens.
The largest universities in Decatur County, IA are Graceland University-Lamoni (707 degrees awarded in 2017).
The median property value in Decatur County, IA is $76,300, and the homeownership rate is 66.4%. Most people in Decatur County, IA commute by Drove Alone, and the average commute time is 22.4 minutes. The average car ownership in Decatur County, IA is 2 cars per household.